While it's not a BigHorn I am working my way towards owning one some day. I'm going to start working on my CDL after the first of the the year. So far we have a 1962 W500 and a 1967 D600 in the fleet. My last and most needed item will be a brush fire truck, preferably a 61-71 W500. In fact, I just missed a 1970 W500 brush truck for $3500 about 80 miles away in Klamath Falls. I'm still sick about that one. I love working old trucks and equipment, it's really fun and at times productive! I guess while we are on the subject here is my Cat 955 and the D600 : )
Sorry for the hi-jack!
Most of the old brush trucks in Florida were M37 variants... the firemen loved them, they didn't seem to like the newer stuff as much performance wise... I think the new stuff had A/C usually though... goes a long way in FL.